2 * Copyright (c) 1990 - 1994, Julianne Frances Haugh
3 * Copyright (c) 1997 - 2000, Marek Michałkiewicz
4 * Copyright (c) 2005 , Tomasz Kłoczko
5 * Copyright (c) 2008 , Nicolas François
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the copyright holders or contributors may not be used to
17 * endorse or promote products derived from this software without
18 * specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
46 * failure - make failure entry
48 * failure() creates a new (struct faillog) entry or updates an
49 * existing one with the current failed login information.
51 extern void failure (uid_t, const char *, struct faillog *);
54 * failcheck - check for failures > allowable
56 * failcheck() is called AFTER the password has been validated. If the
57 * account has been "attacked" with too many login failures, failcheck()
58 * returns FALSE to indicate that the login should be denied even though
59 * the password is valid.
61 extern int failcheck (uid_t uid, struct faillog *fl, bool failed);
64 * failprint - print line of failure information
66 * failprint takes a (struct faillog) entry and formats it into a
67 * message which is displayed at login time.
69 extern void failprint (const struct faillog *);
72 * failtmp - update the cummulative failure log
74 * failtmp updates the (struct utmp) formatted failure log which
75 * maintains a record of all login failures.
78 extern void failtmp (const struct utmpx *);
80 extern void failtmp (const struct utmp *);